---
title: "ICD-10-CM F34.1: Dysthymic disorder | BillingBrief"
description: "ICD-10-CM code F34.1: Dysthymic disorder. Category, related codes, and the official source, in plain English."
canonical: "https://billingbrief.com/icd10/f34.1/"
language: "en"
---

# F34.1 Dysthymic disorder

ICD-10-CM · [CMS code reference](#source)

**Official ICD-10-CM description:** Dysthymic disorder

## Coding notes

From the ICD-10-CM FY2027 (effective October 1, 2026) tabular list. Notes on a parent code or category apply here too.

### Also covers

-   Depressive neurosis
-   Depressive personality disorder
-   Dysthymia
-   Neurotic depression
-   Persistent anxiety depression
-   Persistent depressive disorder

### Excludes2

Not part of this code, but both can be coded when both are documented.

-   anxiety depression (mild or not persistent) ([F41.8](https://billingbrief.com/icd10/f41.8/))

## Related codes

-   [`F34.0` Cyclothymic disorder ICD-10-CM](https://billingbrief.com/icd10/f34.0/)
-   [`F34.81` Disruptive mood dysregulation disorder ICD-10-CM](https://billingbrief.com/icd10/f34.81/)
-   [`F34.89` Other specified persistent mood disorders ICD-10-CM](https://billingbrief.com/icd10/f34.89/)
-   [`F34.9` Persistent mood \[affective\] disorder, unspecified ICD-10-CM](https://billingbrief.com/icd10/f34.9/)

## Common questions

### Is F34.1 a billable code?

Yes. F34.1 is a billable ICD-10-CM code in the ICD-10-CM FY2027 (effective October 1, 2026) code set.

## From the source

Official description from [CMS](https://www.cms.gov/medicare/coding-billing/icd-10-codes).
ICD-10-CM FY2027 (effective October 1, 2026).

Code set

ICD-10-CM

Category

F34 Persistent mood \[affective\] disorders

Chapter

Mental, behavioral and neurodevelopmental disorders

Billable

Yes

Educational reference only. Not medical, legal, or billing advice. Always check the current official code set and payer policy before you bill. [About BillingBrief and our sources](https://billingbrief.com/about/).